<form method="post" action="./index.php?page=liste_dvd&search=all">
    <table>
       <tr>
          <td> &gt;&gt; Rechercher un dvd : </td>
          <td>
              <input type="text" name="recherche" size="15" maxlength="80" style="height:15px;"/>
 			  <input type="submit" value="valider" />
 	      </td>
 	   </tr>
    </table>
</form>